47513640 has 64 divisors (see below), whose sum is σ = 150932160. Its totient is φ = 11924480.

The previous prime is 47513633. The next prime is 47513651. The reversal of 47513640 is 4631574.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 47513598 and 47513607.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9606 + ... + 13685.

It is an arithmetic number, because the mean of its divisors is an integer number (2358315).

Almost surely, 2^47513640 is an apocalyptic number.

47513640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47513640 is an abundant number, since it is smaller than the sum of its proper divisors (103418520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47513640 is a wasteful number, since it uses less digits than its factorization.

47513640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23322 (or 23318 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 47513640 is about 6893.0138546212. The cubic root of 47513640 is about 362.1924843471.

The spelling of 47513640 in words is "forty-seven million, five hundred thirteen thousand, six hundred forty".